From owner-freebsd-hackers Sun Jun 2 17:29:26 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id RAA21808 for hackers-outgoing; Sun, 2 Jun 1996 17:29:26 -0700 (PDT) Received: from hemi.com (hemi.com [204.132.158.10]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id RAA21780; Sun, 2 Jun 1996 17:29:19 -0700 (PDT) Received: (from mbarkah@localhost) by hemi.com (8.6.12/8.6.12) id SAA07943; Sun, 2 Jun 1996 18:33:30 GMT From: Ade Barkah Message-Id: <199606021833.SAA07943@hemi.com> Subject: Re: Nasty Routing BUG in 2.1R To: jkh@time.cdrom.com (Jordan K. Hubbard) Date: Sun, 2 Jun 1996 18:33:29 +0000 () Cc: hackers@freebsd.org, freebsd-isp@freebsd.org In-Reply-To: <22704.833742475@time.cdrom.com> from "Jordan K. Hubbard" at Jun 2, 96 12:07:55 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > > To crash the FreeBSD system, simply type 'ping x.x.x.252', which > > generates "/kernel: arpresolve: can't allocate llinfo". ... > > I assume this is 2.1-stable here? Here's from uname -a: | FreeBSD hemi.com 2.1.0-RELEASE FreeBSD 2.1.0-RELEASE #1: Sun Apr 28 | 10:35:33 MDT 1996 root@hemi.com:/usr/src/sys/compile/KERNEL i386 It's pretty much the stock 2.1-R kernel with minor modifications to bind() to restrict access only to users in a certain group. > > ... something happened during the subsequent savecore which totally > > messed up the root partition. ... > > Ermm. What's dumpdev pointing at please? We should try and figure > out why this happened! kern.dumpdev = sd0s2b /dev/sd0s2b none swap sw 0 0 The savecore was ran manually about 1 hour after the system came back up. The machine crashed during the savecore and that was pretty much the end of the / filesystem (incidently, the savecore was to the /usr filesystem.) We were able to get key files from /etc, but many of the binaries were corrupted, and the system hopelessly hangs somewhere after device probes are completed and before /etc/rc gets run. We replaced all the binaries by untarring fresh copies from the 2.1-R cd-rom. Thanks, -Ade ------------------------------------------------------------------- Inet: mbarkah@hemi.com - HEMISPHERE ONLINE - -------------------------------------------------------------------